Detachable tire-tread.



Pgs-Poomin.

DETACHABLE TIRE TREAD. APPLICATION FILED MAY IL-IQI'I.

1,258,490. Patented Mar. 5, 1918.

5: 25- I I l & u I m g}: n '27 III: II-IIIII IIII UNITED STATES PATENT OFFICE.

WILLIAK rtencrsroonnn, or RATKWELL, MANITOBA, CANADA.

I'm'rAcIr BLn rmn mAn.

Specification or Letters remit.

Patented Mar.5,191$-.

Application filed my '17, 1911.; Serial no. name.

To all @h'mfiitmay concern}. y

Be it. k n wn .th" I, WILLIAM Pnacr Sroonnn, oigthe town ofiRathwel]; in the ProvinceofManitoba', Canada, have invent ed certain new anduseful Improvements in Detachable Tire-Treads, f which the 'f ollowing is the specification. e

The invention relates ed for apqplication on automobiletwheels and the prin I prov1de.f,'

end whichfcttnbe readily;

emgentions s ct o a -m n er {a sembl n ee het 7 1y atjustedto accomm dti ryn iametersjofieXistingwheels With-1th bove 'objectsEin' view the i tion consists; esse tiallyjgin; a tread from. a;:i l frality of ."simila1 sections eircu scribing; the lwhwl 'ar'idgdetaehably bolted t gather and rovided crithe inner side with" peculiarly. s ap'ed extending fastening lugs; apair of clamping'platesand brace bars 'extendin between one of the plates and the assemble tread sections, the'parts being arranged and constructedas hereinafter more particularly (lescribed and later pointed out in theappended claim, reference being had to the accompanying drawing in which Figure 1 represents a side view of my complete tread as applied on an automobile wheel.

Fig. 2 represents a vertical sectional view through the wheel andapplied tread.

Fig. 3 represents an enlarged detailed vertical sectional view through the fastened ends of two of the tread sectionsl Fig. 4 represents an inverted plan view of the joint formed between two tread sections.

Inthe drawing like characters of reference indicate corresponding parts in the several figures.

' detachable tire treads, particularly construct 1 pal-1. objectgtofgfihti invent on s to {automobile wheel onceltjhe: t re fornf d won the inner anew composed; of-a band-Q around the-fellyie rim '6 mounted on the bandand provided at one side with an outstanding tire;- grip"? and- -at the-- other side with a ring hol der' 8, a split ring9', a second ring like'tire 'g'rip 10 mounted onf-the rim and bolts l lt.fa'jsten'-,

ing the rim to the folly.

The parts; as. above disclosed allow of the quick mounting of the ordinary tire 'onthe wheel; the inner edges of the; tire being caught between the t' e: grips 7 and IO when he re i n ly' tc d- U -The. partieular: deti 'l's-"of this r leasable grammar antata 112 en arged heads 'flti'fl'i vhich are adapted; 1 in the applied pos iti'on"'of the section .to'jr'est on the rim and be received between the tire grips 7 and 10. Further theinner side of each section is provided with pairs of eyes 17, 18, 19 and 20. at t he s ides and w th a more or less'cen'trally disposed eye 21.

The completed sections'will all be slightly curved so that when assembled around the rim they will present a smooth running surface. After the sections have been mounted on the rim between the grips they are fastened together by bolting as indicated at 22 through the eyes 17, 18,19 and 20.

Here I Wish it to be noticed that the tread overhangs considerably more to the outer side of the wheel than to the inside. The overhanging or extending part of the tread is reinforced by stay bars 23 whn'h have their outer ends bolted as'indicated at 24 to the eyes 21 and their inner ends fastened SUClLflS by bolts lfi'to a pair of fastening; plates 26 and 27 mounted on the hub and located at opposite sides of the spokes,

As will be nbseryed the latter bolts pass between the spoke and serve the double function of Mil/l t plates in position It is" 1.4 n Wh tclitare' provtded .ends

as well as fastening the inner ends of the stay bars. 1-

The above completes the description of the parts and from the disclosure it will be seen that the whole tread can be very readily secured to the wheel and it is easily removed and further that the applied tread gives a wide bearing surface for the wheel thereby allowing the automobile to be used under all road conditions.

While I have described the invention as applied to an automobile wheel, still it will be readily understood that it could be readily adapted for attaching to various vehicle wheels, it being simply a matter of modifying the fastening lugs to accommodate the rim of the wheel on which the appliance is used.

This invention could readily be modified so that instead of having a considerable number of sections there could be two "sections, each of which would extend half way around the wheel and in which case it would only be necessary to have the fastening eyes 17 18, 19 and 20 appear-in at the meeting of the two sections a though the eyes 21 would still. be retained as well as the fastening lugs.

In utilizing the two sections it would be necessary to divide or split in two each of the fastening plates so that-whenthe appliance was unbolted it would come apart in two sections as the split in the fastening plates would be diametrically alined with the joint between the sections. This latter modification would allow of the quick mounting of my invention on the wheel as it would be only necessary to apply the two halves in position on the wheeland then bolt them together.

What I claim as my invention is The combination withthe rim of a wheel and opposing tire grips carried by the rim, of a tread formed from a plurality of similar detachably connected sections surrounding the tread and provided on the inner side with projecting fastening lugs received be tween the tire grips, opposing fastening plates mounted on the hub and bolted together through the spokes of the wheel and brace bars detachably secured to one of the plates and to the inner side of the tread. lgrigned at Rathwell, this 2nd day of April,

WILLIAM PERCY SPOONER.

In the presence of- J N0. A. CAMERON, Row. J. Pnmem. 

